Preliminary Thermoluminescent Dosimeter Glow Curve Analysis with Automated Glow Peak Identification for LiF:Mg,Ti.

Health Phys

Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor, MI 48109-2104.

Published: August 2021

When appropriately analyzed, thermoluminescent dosimeter glow curve analysis allows for improved quantification of thermoluminescent material behavior while flagging abnormalities. The mathematical separation of a glow curve into contributions from energetically unique trap states, or glow curve analysis, may be used to remove undesired effects of signal fading for complex materials. A generalized glow curve analysis software for the separation of glow curves is presented in this paper. Written in C++, the software uses the first-order kinetics model with automatic peak identification. The automatic identification of peaks is achieved through a unique peak-finding algorithm. The program was performance tested using experimental glow curve data from LiF:Mg,Ti, and comparative results are presented.

Download full-text PDF

Source
http://dx.doi.org/10.1097/HP.0000000000001426DOI Listing

Publication Analysis

Top Keywords

glow curve
24
curve analysis
16
thermoluminescent dosimeter
8
glow
8
dosimeter glow
8
peak identification
8
separation glow
8
curve
6
preliminary thermoluminescent
4
analysis
4

Similar Publications

Using the solid-state reaction technique, varied YSiO phosphors activated by europium (Eu) ions at varied concentrations were made at calcination temperatures of 1000 °C and 1250 °C during sintering in an air environment. The XRD technique identified the monoclinic structure, and the FTIR technique was used to analyze the generated phosphors. Photoluminescence emission and excitation patterns were measured using varying concentrations of Eu ions.

View Article and Find Full Text PDF

A glow-curve analysis code was previously developed in C++ to analyze thermoluminescent dosimeter glow curves using automated peak detection while a first-order kinetics model. A newer version of this code was implemented to improve the automated peak detection and curve fitting models. The Stochastic Gradient Descent Algorithm was introduced to replace the prior approach of taking first and second-order derivatives for peak detection.

View Article and Find Full Text PDF

Thermoluminescence of NaF and NaF:Tm phosphors exposed to beta particle irradiation.

Appl Radiat Isot

December 2024

Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Apartado Postal 130, Hermosillo, Sonora, 83000, Mexico.

This work reports the synthesis and beta particle excited thermoluminescence (TL) characteristics of NaF and NaF:Tm phosphors synthesized via wet precipitation. The samples were subjected to thermal annealing at 750 °C for 5, 10, and 24 h in an air atmosphere. A sensitization effect is observed in repeated irradiation-TL readout cycles.

View Article and Find Full Text PDF

Characterization of natural soda ash for dosimetry using thermoluminescence technique.

Appl Radiat Isot

December 2024

Department of Physics, University of Botswana, Private Bag UB 0022, Gaborone, Botswana.

Soda ash, due to its various use for industrial applications, is a phosphor likely to be found in the vicinities of radiation facilities where retrospective dosimetry may be required in the unlikely events of radiation accidents/incidents. The ash is therefore a potential material for retrospective dosimetry using luminescence techniques. In this report, the thermoluminescence characteristics of soda ash from Suan pan, Botswana are presented.

View Article and Find Full Text PDF
Article Synopsis
  • - The study explored how different heat treatments affected the thermoluminescence (TL) and structure of zinc sulfide (ZnS) samples, revealing that annealing increased the proportion of the hexagonal wurtzite phase.
  • - The best thermoluminescence intensity was found in a sample with 8.2% wurtzite and 91.8% cubic zinc sulfide, with the analysis showing well-formed, aggregated ZnS nanoparticles.
  • - The researchers used advanced techniques to analyze TL glow curves, identifying multiple trapping energy peaks and determining activation energies related to electron traps in the samples.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!